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QUEUE.LBR
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ADDQ.ZEX
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Text File
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2000-06-30
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640b
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11 lines
;; ZEX command file for adding a filename to a queue of filenames
;; in the SH.VAR file. 'QH' is a variable that points to the
;; head item in the queue, 'QT' points to the last item. The last
;; item always points to the new item. REGister 1 is used as a
;; flag to indicate whether anything is already in the queue or not.
;; A value of 0 in REG 1 indicates that the queue is empty.
;; -RDN
SH
IF 1;SHVAR QH $1;GO QT $1;REG S1 1;ELSE;SHVAR %QT $1;GO QT $1;FI
SHEXIT
;; end of ZEX command file